Whistling-machine.



WHISTLING monmn.

Patented Mar. 19, 1912.

6 BHBETfl-BKEBT 1.

JosaPH LWMER EDWARD \IANDERAU E. VANDERALI & J. LITMER.

APPLIOATIOH FILED APR. 29, 1911. 1,020,859.

COLUMBIA FMNOEIRAPH co.. WASHINGTON, u. c.

E. VANDERALI & J. LITMER.

WHISTLING MACHINE.

APPLICATION FILED APR. 29, 1911.

1,020,859. Patented Mar. 19, 1912.

5 SHEETB-BHEET 2.

WITNESSES INVENTORS W \Mfinxk EDWARD \IANDERNJ 7Z JOSEPH LH'MER COLUMBIA PLANOGRAPH (IO-.WASHINCITON, D. :4

B. VANDERALI & J. LITMER.

WHISTLING MACHINE.

APPLICATION FILED APR. 29, 1911,

Patented Mar. 19, 1912.

5 SHEETS-SHEET 3.

NF mm mm Q on m mm 8 *Y an E H .RN wm mm EDWAQDVANUERAU J o SEPH \TMER J'Ha- COLUMBIA PLANOORAPH CO..WASN|NOTON. D. c.

E. VANDERALI & J. LITMER.

WHISTLING MACHINE. APPLICATION FILED APR. 29, 1911.

1,020,859. v Patented Mar. 19, 1912.

womkm] EDWARD VANDERAU DosEPH LNMER 'UNTE EDWARD VANDERALI AND JOSEPH LITMER, F ADRIAN, MINNESOTA.

WHISTLING-MACHINE.

Specification of Letters Patent.

Application filed April 29, 1911.

Patented Mar. 19, 1912.

Serial No. 624,130.

To all whom it may concern 3 Be it known that we, EDWARD VANDERALT and Josnrrr LrrMnn, citizens of the United States of America, .rcsiding at Adrian, in the county of Nobles and State of Minnesota, have invented certain new and useful Improvements in WVhistling-Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to the subject of railway signaling, and the principal object of the same is to provide novel means whereby when a locomotive, or the like, approaches a crossing or other signaling point, an alarm will be automatically sounded so that due notice will be given of the approach of the locomotive.

In the example of one use of the invention, the same has been shown in connection with .a locomotive and embodies a whistle that is sounded by the steam from one of the chests of the cylinder, intermediate mechanism being provided for controlling the whistle, said mechanism being actuated by means of stationary cams or the like that are carried by the ties adjacent the signaling points and trip a lever that controls said mechanism.

A simple and practical embodiment of the invention is shown in the accompanying drawings, wherein Figure 1 is a view in side elevation of the improved signal and track cam for operating the same, dotted lines being used to show the manner of attaching the signal to a locomotive. Fig. 2 is a top plan view, the casing being removed. Fig. 3 is a view in elevation of one side of the signal. Fig. 4 is a similar view of the opposite side. Fig. 5 is a view partly in longitudinal section and partly in elevation of the cylinder of the signal. Fig. 6 is a detail fragmentary view, partly in longitudinal section and partly in side elevation, of the mechanism for operating the valves that control the admission and exhaust of pressure for the rear end of the pressure cylinder. Fig. 7 is a view in side elevation of the whistle levertaken on the line 1010, Fig. 6. Fig. 11 is a view in elevation of one of the valve cranks shown in Fig. 6.

The improved automatic signal is inclosed in a suitable casing 10 that is disposed on one side of the pilot of a locomotive, and comprises the flat base or foundation 11 which is provided with spaced supporting standards 12 that carry the seats 13 which support a cylinder 14 above and in spaced parallel relation to said seats. Cylinder 14 is locked to the seats 13 by the clamping bands 15 which transversely surround said cylinder. A piston 16 is slidable in cylinder 14 and the piston rod 17 thereof projects beyond the forward end of said cylinder and is suitably connected to the standards 18 that project from a rack bar 19 that is slidable in a guideway formed by the spaced parallel plates 20 that extend longitudinally of base 11. Vertical bearing posts 21 are oppositely disposed on base 11 adjacent the forward end of cylinder 14 and a transverse shaft 21 is journaled in said posts. A gear 22 fast on shaft 21 is in mesh with rack bar 19 and is rotated by the sliding movement of said bar. One end of shaft 21 projects beyond one side of base 11 and a disk 23 is loose thereon. Disk 23 has its periphery provided with cams 24. The outer surface of disk 23 has a camshaped abutment 25 thereon. The projected end of shaft 21 has a sleeve 26 fast thereon that carries a socket 26 for a pivot bolt 27, to which a locking frame 28 is pivotally connected. Frame 28 is provided with an arm 29 that rides over the cam surface of abutment 25 on a movement of shaft 21 in one direction and on the opposite movement of said shaft, said arm 29 engages abutment 25 and imparts a rotary movement to disk 23.

An angular rocking lever is pivotally connected to base 11 in the rear of disk 23 and has a forwardly-projecting leg 30, the free end 31 of which is bifurcated and straddles the periphery of said disk. The bifurcated end 31 carries a roller 32 that is engaged by the cams 24 of disk 23 so the rotations of said disk rock said lever. The rear leg 33 of the rocking lever has a cable connection 34 with the operating lever 35 of a whistle 36, so that the rocking movements of said -lever will sound the whistle.

A supply pipe 37 projecting from the steam chest or other source of pressure supply carried by the locomotive extends parallel with one side of cylinder 14 and enters the rear end of said cylinder. Whistle 36 is carried by a pipe 38 projecting from the supply pipe 37 Supply pipe 37 has a branch 37 that enters the forward end of cylinder 14.

A standard 39 is carried by base 11 substantially opposite the disk 23 and is pro vided with spaced longitudinally-arranged guiding loops 40 through which a tripping rod 41 is slidable. The upper end of rod 41 carries a laterally-projecting arm 42. Arm 42 has a spring connection 43 with the base of standard 39, the tension of said spring normally projecting rod 41 downward. The lower end of rod 41 carries an anti-friction roller 44 that is adapted to contact with cams 45 carried by ties adjacent signaling points so said rod 41 will be forced upward against the tension of spring 43.

A rocker shaft 46 is ournaled in a vertical bearing post 47 carried by base 11 adj acent the rear end of rack 19, and a pendent crank arm 48, that is in the path of movement of a lug 49 that projects laterally from said rack 1.9, so that said lug contacts with crank 48 and thereby rocks shaft 46. A lever 50 projects upward from shaft 46 and has a spring connection 51 with the rear of base 10 which normally holds said lever in contact with an abutment 52 carried by the rear of base 11. Lever 50 when rocked forward rests in a yoke 53 carried by arm 42, so that when rod 41 is forced upward by contact with the cams 45, said lever will be permitted to be thrown back by the combined action of said rod and the spring 51 to contact with the abutment 52. Lever 5O has-a laterally projecting upper arm 54 that has a link connection 55 with a crank 56 carried by a cutoff valve 57 in the branch pipe 37*, and an intermediate lateral arm 58 that has a link connection 59 with a crank 60 of an exhaust valve 61 also carried by said branch pipe 37*. This manner of connecting valves 57 and 61 with lever 50 causes said valves to be operated simultaneously by the movements of said lever. Valve 61 is interposed in the pipe 37 between valve 57 and cylinder 14, and said valves operate in opposite directions so that when one is opened the other is closed.

At the forward portion, base 11 carries a vertical bearing post 62 in which a rocker shaft 63 is journaled. Shaft 63 has a pendent crank arm 64 that is in the path of movement of a lug 65 that projects laterally from the forward portion of rack 19. A crank 66 projects upward from shaft 63 and carries a rearwardly-projecting tripping rod 67 that extends through a guiding lug 68 carried by the rear of base 11 and is adapted to contact with and rock a pendent crank arm 69 of a cut-off valve 70 in the whistle pipe 38. Cut-off valve 70 also carries an outwardly-projecting crank arm 71 which has a link connection 72 with an upwardlyprojecting crank arm 73 of a cut-off valve 74 in the supply pipe 37. Valve 74 also carries a pendent crank arm 75 which has a link connection 76 with the crank 77 of a rocker shaft 7 8 journaled in a post 79 projecting from the rear of base 11. Crank 77 has a spring connection 80 with a post 81 at the rear of base 11 which tends to hold said crank inclined toward the rear of said base. Crank 66 has a spring connection 82 with the forward port-ion of base 11. With this arrangement, it will be seen that valves 70 and 72 are simultaneously operated, but said valves operate in opposite directions so that when one is opened the other is closed.

A spring 83 connects the forward leg 30 of the whistle-operating lever to a plate 83 projecting from the base 11 and holds the bifurcated end 31 of said leg in engagement with the cams 24 of disk 23.

The operation of the signal is as follows :T he piston 16 is reciprocated by the pressure alternately admitted through the ends of cylinder 14 by the pipes 37 and 37*. Piston rod 17 being fastened to rack 19, the reciprocations of said rod similarly actuate said rack, and said rack being in mesh with gear 22 and said gear being fast on shaft 21, said shaft is oscillated. Disk 23 being loose on shaft 21., one movement of said shaft causes the locking arm 29 to ride over cam 25, and on the opposite movement of said shaft, said arm contacts with the abutment end of said cam and thereby causes the disk 23 to rotate with said shaft. The cams 24 of disk 23 are arranged in spaced relation so that the rotary movement of said disk will impart rocking movements to the whistle lever so that sharp blasts will be sounded by the whistle 36. Lever 50 controls the operations of valves 57 and 61 and said lever is rocked to engagement with the arm 42 of tripping rod 41 by the abutment 49 of rack 19 engaging the crank 48 of shaft 46. When lever 50 is in the described position and as shown in Figs. 4 and 6, exhaust valve 61 is open and cut-off valve 57 is closed, and whistle valve 7 0 is closed and cut-off valve 74 is open. Piston 16 is at the rear end of cylinder 14 and when sufficient pressure enters the rear end of said cylinder, piston 16 moves toward the forward end thereof carrying with it piston rod 17 and rack 19. The forward movement of rack 19 causes abutment lug 65 to contactwith crank arm 64 of shaft 63 and rock said shaft and cause arm 66 to move rod 67, so that said rod 67 will rotate arm 69 and thereby open valve 70, and cause arm 71, link 72 and arm 73 to close valve 74. The closing of valve 74, through link 76 and crank 77, places spring 80 under tension. When in this position, the signal is set and the roller 44 at the lower end of rod 41 being in position to contact with one of the cams 45, such contact forces rod 41 upward so that arm 42 throws lever 50 rearwardly and thereby opens valve 57 and closes valve 61. Pressure then enters the forward end of cylinder 14 and forces piston 16 rearwardly, causing piston rod 17 to slide rack 19 rearwardly, and said rack rotates shaft 21 so that the locking arm 29 is placed in position to engage cam 25 on the reverse movement of said shaft. The rearward movement of rack 19 removes abutment 65 from engagement with arm 64, whereupon spring 80 acting upon link 76 and crank 75 causes valve 74 to open and the opening movement of said valve causes crank 7 3 to remove rod 67 from engagement with arm 69 of valve 70. At the finish of the rearward movement of rack 19, lever 50 is rocked forwardly as explained to close valve 57 and open valve 61, and pressure is admitted to the rear end of cylinder 14, which causes piston rod 17 to slide rack 19 forward, as has also been explained, so that said rack rotates shaft 21 and causes arm 29 to rotate disk 23. The rotation of disk 23 causes the whistle lever to sound the whistle.

It will, therefore, be seen that this invention provides simple means whereby the whistle is automatically sounded when the rod 41 contacts with the cams'45.

What we claim is 1. An automatically-operating signal for railway vehicles comprising a pressure cylinder having supply pipes communicating with its ends, a whistle carried by one of said pipes, controlling valves for said pipes, a piston in said cylinder provided with a piston rod, a slidable rack operated by said piston, a track cam, mechanism operated by said pipes, controlling valves for said pipes, one set of valves, mechanism operated by said rack for operating the other set of valves, and whistle sounding mechanism operated by said rack.

2. A signal for railway vehicles comprising a pressure cylinder carried by the pilot of a locomotive, pressure supply pipes communicating with the ends of said cylinder, controlling valves in said pipes, a piston and piston rod for said cylinder, at slidable rack connected to said rod, mechanism actuated by said rack for controlling the operation of one set of valves, a tripping rod, mechanism actuated by said tripping rod for controlling the other set of valves, a

whistle carried by one of the supply pipes, and mechanism actuated by said rack for sounding said whistle.

3. A signal for railway vehicles comprising a base, a rack slidable thereon, a transverse shaft carried by said base, a gear thereon meshing with said rack, a cam disk loose on said shaft provided with a cam abutment, a locking arm pivotally connected to said shaft on an axis transverse to the shaft and adapted to engage said abutment, a whistle, a whistle-operating lever pivotally connected to said base and engaging the cam portion of said disk, a track cam, and mechanism thrown into operation by said track cam, for operating said rack.

4. A railway signal comprising a pressure cylinder, a main. supply pipe communicating with one end thereof, a whistle pipe carried by the supply pipe, a whistle carried thereby, controlling valves in said pipes, a branch supply pipe communicating with the opposite end of said cylinder, an exhaust valve and a controlling valve in said branch pipe. a piston and piston rod in said cylinder, means carried by said piston rod for controlling the valves of the main supply pipe, a track cam, mechanism for controlling the valves of the branch pipe, a tripping rod adapted to engage said cam to operate said mechanism, and operating mechanism for said whistle controlled by the means carried by the piston rod.

5. A railway signal comprising a casing, a pressure cylinder therein, a pressure supply pipe communicating with one end of said cylinder and having a branch pipe communicating with the opposite end of the cylinder, a whistle pipe carried by the supply pipe, a valve therein, a whistle carried by the whistle pipe, a controlling valve in the supply pipe, an exhaust valve and a controlling valve in the branch pipe, a piston in said cylinder, a piston rod therefor, means actuated by said piston rod for simultaneously operating the whistle pipe valve and the supply pipe valve in opposite directions, independent means for simultaneously operating the exhaust valve and the branch pipe valve in opposite directions, and whistle operating means actuated by the means actuated by said piston rod.

In testimony whereof we hereunto affix our signatures in presence of two witnesses.

ED\VARD VANDERALI. JOSEPH LITMER. \Vitnesses:

F. J. OUMMISKEY, T. V. LOONAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I), O. 

